I need to see purchases

See the following from See your purchase history for the App Store, iTunes Store, and more - Apple Support

See your purchase history on your iPhone, iPad, or iPod touch

1. Open the Settings app. 
2. Tap your name, then tap Media & Purchases. You might be asked to sign in.
3. Tap Purchase History.
4. 
5. Your purchase history appears. If you want to see purchases that you made more than 90 days prior, tap Last 90 Days, then select a different date range.

Learn what to do if you don’t see the item you’re looking for or if you see unexpected charges.